Switch machine



Jan. 13 1931. w. K.v Howi 1,789,275

SWITCH MACHINE Original Filed June 17, 1919 3 FlGLl. "-1

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l 1 C) O as so so 69 C 6 67 '70 676 OF ,17 GI -74 77 7e q 76 a W BY Patented Jan. 13, 1931 ,UNITED" STATES, PATENT OFFICE wmrnnor x. nown, or nocrms'mn, NEW vomghssmnon T GENERAL RAILWAY SIGNAL COMPANY, OF GATES, NEW YORK, A CORPORATION OF NEW YORK swncn momma Original application fled J1me 17, 1919, Serial No. 304,816. Divided and this application fl-lelAprilH,

1928. Serial This invention relates to electrically operated circuit controllers, and more particularly to circuit controllers ofthis type especially well adapted for use in connection with switch machines for operating railway switches.

The principal object of this invention is to improve and simplify the construction of electrically operable. circuit controllers for switch machines by roviding facilities for liet-ween relatively movable parts, making the parts readily accessible for adjustment, replacement, inspection partment C ,0

and repairs, and arran ng the parts for strength, lightness and dfirability.

he invention consists in the parts and in the arrangement and combination of parts which are more fully set forth hereinafter.

In describing the invention in detail, ref- 7 erence will be made to the accompanying drawings, in which like reference characters designate corresponding parts in'the several views, and in which: c

Figure 1 is a top plan view of the end of a switch machine casing, having its. cover removed, and. showing a circuit controller embodying the present invention mounted therein.

Fig. 2 is a sectional end elevation of a portion of the device shown in Fig. 1, with its cover in place, taken on the line 2 2, Fig. 3, as viewed in the direction of the arrows; and Fig. 3 is a sectional side elevation taken substantially through the'axis of one of the hollow cores of the circuit controllerv operating means shown on the line 3-3, Figs. 1 and- 2, as viewed in the direction of the arrows. V

This is a division of prior application, Ser. No. 304,816, filed June 17, 1919 for improve ments in switch machines Patent 1,466,903, September 4, 1923. I

Referring to the accompanying drawings, the circuit controller embodying the present invention is su ported and enclosed in a com f a switch machine casing, as

shown, and in general comprises an electrically operable circuit controller. for controlling the operating'and indication circuits for a switch machine (hereinafter termed the operating circuit controller) be shifted back and forth from one side of the casing to the other into and out of engagement with said contactfin ers 60. AL though the contact carrier 61 o the operat-' ing circuit controller when used in connection witha switch machine may have its position selected mechanically by a lock rod and shifted by a locking plunger of the switch machine, as well as having means for operatingit electrically, the mechanical means for operating the contact carrier 6lhas not been illustrated so as to simplify the disclosure.

'The stationary or fixed contact fin ers6Q of the circuit controller are carried 7 two bars of insulating material 65, whic are fastened by screws to a bracket or shelf 66 extending along the sides and one end of the circuit controller compartment 0, igzferably' integral with the walls thereof. more particularly to Fig. 3,.each of these stationary contact fingers includes, in addition to the contact finger or spring'proper, a retaining member 67 of relatively stifi material fastened by a screw-bolt 68 to its in sulating' bar 65. The held head I contact spring16O is at one end by a bolt 69, which as its secured to said retaining member 67,

said bolt 69 being provided with clamping nuts in the usual manner to constitute a bind-' ing post to connect wires to said contactfinger.f The other and free end of the contact spring 60 is doubled over and under the free end of the retaining member 67. The retain- ,pieces 71, connected together in pairs, is fased contact fingers orlsprings I,

ferring IOU ing the displacement of said coil in one direction, yieldable means on said sleeves for yieldingly urging said coils against said last mentioned means, cores in said sleeves, and a bridge of magnetic material extendin through said openings and connecting sai cores.

2. A circuit controller comprising, a casing, plugs of magnetic material having tapered extensions extending inwardly from opposite sides of said casing, a sleeve of nonmagnetic material wholly supported by said plugs, a hollow core wholly supporting a movabe contact and adapted to surround said extensions and wholly supported by and in said sleeves for longitudinal movement therein, and coils on said sleeve, said sleeve having beads thereon for preventing endwise movement of said coils.

3. A circuit controller comprising, coils disposed to have their axes horizontal, a sleeve of non-magnetic material in and extending between, the coils, a core of magnetic material loosely received in said sleeve, and rollers pivotally connected to said core to rollably support said core for oscillatory movement in said sleeve.

4. A circuit controller comprising, two spaced parallel sleeves of non-magnetic material each having an opening near the middle thereof, two parallel magnetic cores relatively supported in the sleeves and rigidly fastened together near their middle by a magnetic bridge passing through said openings contained in said sleeves, coils surrounding the ends of said sleeve, and contact mechanism carried by said cores.

5. 'A circuit controller comprising, two parallel sleeves of non-magnetic material, two parallel magnetic cores rigidly fastened together near their middle contained insaid sleeves, coils surrounding the ends of said sleeves, a roller supporting said cores for reciprocatory movement in said sleeve, and contact mechanism carried by said cores.

In testimony whereof I hereby afiix my signature.

WINTHROP K. HOWE. 

